Brain, Vol 120, Issue 7 1245-1259, Copyright © 1997 by Oxford University Press
PG Kennedy
Advances in molecular biology and virus genetics have allowed the
possibility of gene therapy using viral vectors for a variety of
neurological diseases in which the genetic or biochemical basis is
understood. A number of such vectors have now been constructed, including
those derived from herpes simplex virus (HSV), adenovirus, retrovirus and
adeno-associated virus, and used in preliminary in vitro experiments and in
animal models. It is possible to package a foreign gene into such a vector
which can then be targeted to specific regions of the nervous system. HSV
is particularly appropriate for delivering genes to neurons in view of its
ability to establish latent infection in these cells. Viral vectors have
the potential to be used to treat such neurological conditions as malignant
gliomas, Parkinson's disease, known single gene disorders and cerebral
ischaemia. However, the technical problems which will need to be overcome
are formidable and will not be easily solved. The problems include the
efficient delivery of the vector to target cells, the maintenance and
control of foreign gene expression, and the control of unwanted host immune
responses.
REVIEWS
Potential use of herpes simplex virus (HSV) vectors for gene therapy of neurological disorders
Department of Neurology, Glasgow University, Southern General Hospital NHS Trust, UK.
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